Hot Rods Stant Gas Cap

53 Studebaker

I need a new gas cap,or good used, for my 53 Studebaker.
I want the old style that has an open vent, rather than the newer type that allows tank to pressurize.
It turns out there seems to be a lot of different type caps out there.
Anyone know what model Stant ( or other brand would fit?
I see a GT3 and a GT55 on ebay for instance, both look about right.
It's just a standard looking filler tube.
Thanks for any help.

I already bought one the wrong size.

 

Here is Rockauto search results:
https://www.rockauto.com/en/catalog...0cid+l6,1439590,fuel+&+air,fuel+tank+cap,5900

It gives some part numbers that you may be able to purchase locally.

 

Thanks those are all new style vent sadly

 

Cross references for Gates 31640:
https://www.finditparts.com/product...lc3Vs dF9pZHgiOjd9 &ga_list=Search Results v3

 

Your Stude has a door to conceal gas filler?

 

Here is an NOS Stant G-40A?
https://www.ebay.com/itm/1861711082...SkJ7TqJF5b7BFJnfjDu_GoX0ClWJFAQW3YP_-Zp7fn7JM

 

https://www.ebay.com/b/Car-Truck-Fuel-Tank-Caps-for-Studebaker/262072/bn_7118641433

I hope this is some help.

 

Thanks, I bought it